Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Oct. 02, 2016	Dec. 31, 2015
CURRENT ASSETS:
Cash and cash equivalents	$ 8,018	$ 56,222
Marketable securities	65,779	32,259
Accounts receivable, net	58,131	67,528
Inventories:
Finished goods	40,605	32,585
Work in process	78,967	57,484
Raw materials and supplies	8,462	8,553
Total inventory	128,034	98,622
Income tax receivable	3,662
Other current assets	7,959	6,961
Total current assets	271,583	261,592
PROPERTY, PLANT AND EQUIPMENT	180,965	177,628
Less allowance for depreciation	95,546	86,322
PROPERTY, PLANT AND EQUIPMENT, NET	85,419	91,306
GOODWILL	11,485	11,485
INTANGIBLE ASSETS, net	5,114	5,471
NOTES RECEIVABLE	6,481	3,940
DEFERRED INCOME TAXES		3,336
OTHER ASSETS	6,505	10,254
Total assets	386,587	387,384
CURRENT LIABILITIES:
Accounts payable	40,651	32,536
Federal and state income taxes		2,196
Accrued liabilities	15,043	13,398
Total current liabilities	55,694	48,130
DEFERRED INCOME TAXES	1,708
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Common stock, $1 par value: Authorized: 12,000,000 shares; Issued: 7,440,518 shares	7,441	7,441
Paid-in capital	7,675	6,775
Retained earnings	329,429	340,799
Accumulated other comprehensive (loss)	(20)	(9)
Stockholders' Equity before Treasury Stock	344,525	355,006
Treasury stock, at cost	15,340	15,752
Total stockholders' equity	329,185	339,254
Total liabilities and stockholders' equity	$ 386,587	$ 387,384

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Balance Type:	credit
Period Type:	instant

- Definition

Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.